3x-9+4x+4=9

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Solution for 3x-9+4x+4=9 equation:


Simplifying
3x + -9 + 4x + 4 = 9

Reorder the terms:
-9 + 4 + 3x + 4x = 9

Combine like terms: -9 + 4 = -5
-5 + 3x + 4x = 9

Combine like terms: 3x + 4x = 7x
-5 + 7x = 9

Solving
-5 + 7x = 9

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '5' to each side of the equation.
-5 + 5 + 7x = 9 + 5

Combine like terms: -5 + 5 = 0
0 + 7x = 9 + 5
7x = 9 + 5

Combine like terms: 9 + 5 = 14
7x = 14

Divide each side by '7'.
x = 2

Simplifying
x = 2

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